package com.jiawa.train.business.service;

import com.jiawa.train.business.domain.*;
import com.jiawa.train.business.enums.ConfirmOrderStatusEnum;
import com.jiawa.train.business.feign.MemberFeign;
import com.jiawa.train.business.mapper.ConfirmOrderMapper;
import com.jiawa.train.business.mapper.DailyTrainSeatMapper;
import com.jiawa.train.business.mapper.cust.DailyTrainTicketMapperCust;
import com.jiawa.train.business.req.ConfirmOrderTicketReq;
import com.jiawa.train.common.context.LoginMemberContext;
import com.jiawa.train.common.req.MemberTicketReq;
import com.jiawa.train.common.resp.CommonResp;
import jakarta.annotation.Resource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

@Service
public class AfterConfirmOrderService {

    private static final Logger LOG = LoggerFactory.getLogger(AfterConfirmOrderService.class);

    @Resource
    private DailyTrainSeatMapper dailyTrainSeatMapper;
    @Resource
    private DailyTrainTicketMapperCust dailyTrainTicketMapperCust;
    @Resource
    private MemberFeign memberFeign;
    @Resource
    private ConfirmOrderMapper confirmOrderMapper;


    // 选中座位后事务处理：

    // 座位表修改售卖情况sell；
    // 余票详情表修改余票；
    // 为会员增加购票记录
    // 更新确认订单为成功
//    @GlobalTransactional
    public void afterDoConfirm(DailyTrainTicket dailyTrainTicket,List<DailyTrainSeat> finalSeatList,List<ConfirmOrderTicketReq> tickets,ConfirmOrder confirmOrder) throws Exception {
//        LOG.info("seata全局事务ID:{}", RootContext.getXID());
        for (int j = 0; j < finalSeatList.size(); j++) {
            DailyTrainSeat dailyTrainSeat = finalSeatList.get(j);
            DailyTrainSeat seatForUpdate = new DailyTrainSeat();
            seatForUpdate.setId(dailyTrainSeat.getId());
            seatForUpdate.setSell(dailyTrainSeat.getSell());
            seatForUpdate.setUpdateTime(new Date());
            dailyTrainSeatMapper.updateByPrimaryKeySelective(seatForUpdate);
            //  计算这个站卖出去后，影响了哪些站的余票库存
            //  如何保证不超卖，不少卖，还要能承受极高的并发
            //  影响的库存： 本次选座之前没卖过票的，和本次购买的区间有交集的区间
            //  假设10个站，本次买4-7站
            //   原售 001000001
            //   购买 000011100
            //   新售 001011101
            //   影响 XXX11111X
//            Integer startIndex = ;
//            Integer endIndex = ;
//            Integer minStartIndex = startIndex - 往前碰到的最后一个0;
//            Integer maxStartIndex = endIndex - 1;
//            Integer minEndIndex = startIndex + 1;
//            Integer maxEndIndex = endIndex + 往后碰到的最后一个0;
            Integer startIndex = dailyTrainTicket.getStartIndex();
            Integer endIndex = dailyTrainTicket.getEndIndex();
            char[] chars = seatForUpdate.getSell().toCharArray();
            Integer maxStartIndex = endIndex - 1;
            Integer minEndIndex = startIndex + 1;
            Integer minStartIndex = 0;
            for (Integer i = startIndex - 1; i >= 0; i--) {
                char aChar = chars[i];
                if (aChar == '1') {
                    minStartIndex = i + 1;
                    break;
                }
            }
            LOG.info("影响出发站区间:" + minStartIndex + "-" + maxStartIndex);
            Integer maxEndIndex = seatForUpdate.getSell().length();
            for (Integer i = endIndex; i < seatForUpdate.getSell().length(); i++) {
                char aChar = chars[i];
                if (aChar == '1') {
                    maxEndIndex = i;
                    break;
                }
            }
            LOG.info("影响到达站区间:" + minEndIndex + "-" + maxEndIndex);
            dailyTrainTicketMapperCust.updateCountBySell(
                    dailyTrainSeat.getDate(),
                    dailyTrainSeat.getTrainCode(),
                    dailyTrainSeat.getSeatType(),
                    minStartIndex, maxStartIndex,
                    minEndIndex, maxEndIndex);
            // 调用会员服务接口，为会员增加一张车票
            MemberTicketReq memberTicketReq = new MemberTicketReq();
            memberTicketReq.setMemberId(confirmOrder.getMemberId());
            memberTicketReq.setPassengerId(tickets.get(j).getPassengerId());
            memberTicketReq.setPassengerName(tickets.get(j).getPassengerName());
            memberTicketReq.setTrainDate(dailyTrainTicket.getDate());
            memberTicketReq.setTrainCode(dailyTrainTicket.getTrainCode());
            memberTicketReq.setCarriageIndex(dailyTrainSeat.getCarriageIndex());
            memberTicketReq.setSeatRow(dailyTrainSeat.getRow());
            memberTicketReq.setSeatCol(dailyTrainSeat.getCol());
            memberTicketReq.setStartStation(dailyTrainTicket.getStart());
            memberTicketReq.setStartTime(dailyTrainTicket.getStartTime());
            memberTicketReq.setEndStation(dailyTrainTicket.getEnd());
            memberTicketReq.setEndTime(dailyTrainTicket.getEndTime());
            memberTicketReq.setSeatType(dailyTrainSeat.getSeatType());
            //   远程调用无法回滚，只能做一个补偿
            CommonResp<Object> commonResp = memberFeign.save(memberTicketReq);
            LOG.info("调用member接口，返回：{}", commonResp);
            //  更新订单状态为成功
            ConfirmOrder confirmOrderForUpdate = new ConfirmOrder();
            confirmOrderForUpdate.setId(confirmOrder.getId());
            confirmOrderForUpdate.setUpdateTime(new Date());
            confirmOrderForUpdate.setStatus(ConfirmOrderStatusEnum.SUCCESS.getCode());
            confirmOrderMapper.updateByPrimaryKeySelective(confirmOrderForUpdate);
//            Thread.sleep(10000);
//            if(true){
//                throw new Exception("测试异常");
//            }
        }
    }



}
